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All Journal Automotive Experiences Urecol Journal. Part E: Engineering Urecol Journal. Part G: Multidisciplinary Research
Silmi Ridwan Putri
Universitas Pendidikan Indonesia, Indonesia
Aerospace Engineering Arts Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mechanical Engineering

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The Effects of Rice Husk Particles Size as A Reinforcement Component on Resin-Based Brake Pad Performance: From Literature Review on the Use of Agricultural Waste as A Reinforcement Material, Chemical Polymerization Reaction of Epoxy Resin, to Experiments Asep Bayu Dani Nandiyanto; Siti Nur Hofifah; Gabriela Chelvina Santiuly Girsang; Silmi Ridwan Putri; Bentang Arief Budiman; Farid Triawan; Abdulkareem Sh. Mahdi Al-Obaidi
Automotive Experiences Vol 4 No 2 (2021)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1287.118 KB) | DOI: 10.31603/ae.4815

Abstract

This study aims to investigate the effect of rice husks’ particle size on resin-based brake pad performance (i.e. compressive strength, puncture strength, mass loss, wear rate, friction coefficient, and heat resistance). Bisphenol A-epichlorohydrin and cycloaliphatic amine were mixed to form resin and used as the brake pad's base material. In the experiment, rice husk with a specific particle size (i.e., 250, 500, dan 1000 μm) was added to the resin. Rice husk has received considerable interest due to its lignin, cellulose, and silica content, making it suitable as friction material due to its ceramic-like behavior. The experimental results showed small rice husk particles improved compressive strength, puncture strength, and bulk density. This can be obtained from the analysis of the maximum compressive strength for brake pad supported by particles with sizes of 250, 500, and 1000 μm having values of 0.238; 0.173; and 0.144 MPa, respectively. In contrast, large particles formed coarse surfaces and pores, decreased mass loss rate, and improve friction properties (i.e. wear rate, friction coefficient). The friction coefficient values of brake pad supported by particles with sizes of 250, 500, and 1000 µm were, respectively, 0.2075; 0.2070; and 0.3379. Particle size affected interpacking, interfacial bonding, pores number and size, thermal softening, mechanical properties, and friction properties of the brake pad. Comparison between the prepared resin-based and commercial brake pad was also done, confirming the utilization of agro-waste as a potential alternative for friction material in the brake pad.
Economic Evaluation of Cobalt Ferrite (CoFe2O4) Nanoparticles Using Thermal Decomposition Synthesis Method Sadina Sahitya Dewi; Wafa Raihanah Arwa; Dewi Yulina Nur Soleha; Silmi Ridwan Putri; Asep Bayu Dani Nandiyanto
Urecol Journal. Part E: Engineering Vol. 1 No. 2 (2021): August-Dec
Publisher : Konsorsium LPPM Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (284.343 KB) | DOI: 10.53017/uje.109

Abstract

The purpose of this study was to determine the technical and economic feasibility of a project to manufacture CoFe2O4 nanoparticles using the thermal decomposition synthesis method on an industrial scale. The method used in economic evaluation is to compare several parameters such as gross profile margin (GPM), payback period (PBP), breakeven points (BEP), internal rate return (IRR), cumulative net present value (CNPV), return on investment (ROI), and profitability index (PI). The results show that the production of CoFe2O4 nanoparticles is profitable on an industrial scale with a relatively lower selling price than the market price and a relatively small size. This project can run within nine years and the investment will be profitable within 2 years according to PBP results.
Techno-Economic Analysis on the Production of Copper Oxide (CuO) Nanoparticles by Hydrothermal Method on an Industrial Scale Rahmi Sabila Sidqi; Rian Febriyana Putra; Clarysa Satari; Silmi Ridwan Putri; Asep Bayu Dani Nandiyanto
Urecol Journal. Part G: Multidisciplinary Research Vol. 1 No. 2 (2021): August-Dec
Publisher : Konsorsium LPPM Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (273.118 KB) | DOI: 10.53017/ujmr.107

Abstract

The purpose of this study was to evaluate the economic and technical layout carried out on industrial scale CuO production using the hydrothermal method. The evaluation method used is economic evaluation by calculating gross profit margin (GPM), payback period (PBP), break even point (BEP), internal rate return (IRR), cumulative net present value (CNPV), and profitability index (PI). CuO was synthesized using Cu(CH3COO)2.H2O dissolved in water and then 1M sodium hydroxide solution was added. The solution was put in an autoclave at 110?C for 2 hours. Distilled water and ethanol were used to wash the black precipitate obtained and dried at 90?C in air. The results of the calculation of GPM and CNPV from the manufacture of industrial scale CuO show that the payback period (PBP) has increased in the third year because the project has been running well. CuO applications on an industrial scale can be used as photocatalysts and lithium battery anodes. This research is expected to provide an industrial scale overview of the economic evaluation and layout of the production of CuO through the hydrothermal method used as a photocatalyst and anode of lithium-ion batteries.
Economic Evaluation of Cobalt Ferrite (CoFe2O4) Nanoparticles Using Thermal Decomposition Synthesis Method Sadina Sahitya Dewi; Wafa Raihanah Arwa; Dewi Yulina Nur Soleha; Silmi Ridwan Putri; Asep Bayu Dani Nandiyanto
Urecol Journal. Part E: Engineering Vol. 1 No. 2 (2021): August-Dec
Publisher : Konsorsium LPPM Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53017/uje.109

Abstract

The purpose of this study was to determine the technical and economic feasibility of a project to manufacture CoFe2O4 nanoparticles using the thermal decomposition synthesis method on an industrial scale. The method used in economic evaluation is to compare several parameters such as gross profile margin (GPM), payback period (PBP), breakeven points (BEP), internal rate return (IRR), cumulative net present value (CNPV), return on investment (ROI), and profitability index (PI). The results show that the production of CoFe2O4 nanoparticles is profitable on an industrial scale with a relatively lower selling price than the market price and a relatively small size. This project can run within nine years and the investment will be profitable within 2 years according to PBP results.
Techno-Economic Analysis on the Production of Copper Oxide (CuO) Nanoparticles by Hydrothermal Method on an Industrial Scale Rahmi Sabila Sidqi; Rian Febriyana Putra; Clarysa Satari; Silmi Ridwan Putri; Asep Bayu Dani Nandiyanto
Urecol Journal. Part G: Multidisciplinary Research Vol. 1 No. 2 (2021): August-Dec
Publisher : Konsorsium LPPM Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53017/ujmr.107

Abstract

The purpose of this study was to evaluate the economic and technical layout carried out on industrial scale CuO production using the hydrothermal method. The evaluation method used is economic evaluation by calculating gross profit margin (GPM), payback period (PBP), break even point (BEP), internal rate return (IRR), cumulative net present value (CNPV), and profitability index (PI). CuO was synthesized using Cu(CH3COO)2.H2O dissolved in water and then 1M sodium hydroxide solution was added. The solution was put in an autoclave at 110?C for 2 hours. Distilled water and ethanol were used to wash the black precipitate obtained and dried at 90?C in air. The results of the calculation of GPM and CNPV from the manufacture of industrial scale CuO show that the payback period (PBP) has increased in the third year because the project has been running well. CuO applications on an industrial scale can be used as photocatalysts and lithium battery anodes. This research is expected to provide an industrial scale overview of the economic evaluation and layout of the production of CuO through the hydrothermal method used as a photocatalyst and anode of lithium-ion batteries.
Co-Authors Abdulkareem Sh. Mahdi Al-Obaidi Asep Bayu Dani Nandiyanto Bentang Arief Budiman Clarysa Satari Dewi Yulina Nur Soleha Gabriela Chelvina Santiuly Girsang Rahmi Sabila Sidqi Rian Febriyana Putra Sadina Sahitya Dewi Siti Nur Hofifah Triawan, Farid Wafa Raihanah Arwa